John Alexander Graham

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London, GB

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Patents Grantslast 30 patents

Information Patent Grant
Polyhedron globe puzzle system
- Patent number 6,398,221
- Issue date Jun 4, 2002
- John Alexander Graham
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Icosadodecahedron puzzle system
- Publication number 20040262838
- Publication date Dec 30, 2004
- John Alexander Graham
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Icosadodecahedron puzzle system
- Publication number 20030030213
- Publication date Feb 13, 2003
- John Alexander Graham
- A63 - SPORTS GAMES AMUSEMENTS